How To Fix List.contains Not Working (Solved)

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List.contains Not Working


You have an incorrectly overridden method in "test" (not "AnyTest"), as well. Find elements of a list with a given sum Why are auto leases stubbornly strict about visa status and how to work around that? thanks for your advice... Yes No Additional feedback? 1500 characters remaining Submit Skip this Thank you! have a peek here

That aside, I'm not sure I like this approach of Equals(Element other): the use of other != null uses the overloaded operator, not the built-in reference inequality operator, and if you're List myList=new ArrayList(); myList.add(my); validation(my,myList); } private static void validation(MyClass my, List myList) { Iterator it = myList.iterator(); while (it.hasNext()) { MyClass meHere =; if (my.equals(meHere)) // calling overrides equals You are overriding equals() in the test class. If you want a simpler one and the ProductId is your unique identifier.

C# String Contains Not Working

Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies Life is either daring something or nothing - Helen Keller Christophe Verré Sheriff Posts: 14691 16 I like... Ok, it's not obvious yes..

android list contains share|improve this question edited Feb 18 at 18:55 TylerH 11.1k63667 asked Feb 18 at 18:29 Marcus Berger 279 What type of object is polyline? –cricket_007 Feb You have an incorrectly overridden method in "test" I'm not clear here... Given all the responses I can understand that it's probably a minor difference rather than a fundamental problem. –Ankur Sep 23 '12 at 11:58 add a comment| up vote -1 down List Contains String C# Bharath Raja Ranch Hand Posts: 111 posted 5 years ago Campbell Ritchie wrote: Please show us the code.

yes chris... List Contains Not Working Java Why were pre-election polls and forecast models so wrong about Donald Trump? Is there a non-float alternative to pow()? If you want custom rules, such as equality based on id fields, you need to override the Equals and GetHashCode methods.

How to improve player engagement in video call for virtual tabletop game? C# List Exists This can be verified in the indexOf method of the superclass AbstractList used by ArrayList. please don't get tensed. Why do most microwaves open from the right to the left?

List Contains Not Working Java

Can we think of the EM tensor as an infinitesimal generator of Lorentz transformations? For LatLng's, that method is: public boolean equals(Object o) { if(this == o) { return true; } else if(!(o instanceof LatLng)) { return false; } else { LatLng var2 = (LatLng)o; C# String Contains Not Working Bharath Raja Ranch Hand Posts: 111 posted 5 years ago Mike Simmons wrote: You are overriding equals() in the test class. .contains Not Working C# Here is the Link to the ServerGroup Class: and this is just the ServerGroup Object.toString(). {iconid=0, savedb=1, sortid=0, name=Test 2, n_member_removep=100, sgid=98, type=1, n_member_addp=100, namemode=0, n_modifyp=100} java list contains share|improve

This works well for strings. navigate here share|improve this answer edited Jun 2 '10 at 17:45 answered Jun 2 '10 at 16:27 David 7,54373564 From MSDN (IEquatable.Equals Method) - Indicates whether the current object is equal How to make a receptacle box flush with wall after it has been installed? share|improve this answer answered Oct 20 '14 at 18:48 user2711965 1,1621727 3 Thank you. Contains Not Working Jquery

This works: import java.util.*; public class Contains { public static void main(String[] args) { List stringList = new ArrayList(); stringList.add("someString"); String val = new String("someString"); if (stringList.contains(val)) { System.out.println("The value is Did I cheat? Why?0Convenience method to initialize mutable Set in Java1Remove all objects from list that does not exist in another list Hot Network Questions Do you want me? share|improve this answer answered Jun 2 '10 at 16:27 Samuel Neff 45.7k1082135 This answer scored me another point in my "answer-a-C#-question-by-giving-a-Java-answer" game! :) Although I don't have much C#

return !(e1 == e2); } public bool Equals(Element other) { return this == other; } public override int GetHashCode() { return id; } public override bool Equals(object obj) { // Delegate... Find String In List C# You should override Equals(object) and GetHashCode to be consistent with each other - and for sanity's sake, consistent with your == overload too. For each loop showing decimal point when I don't want it to What specifically did Hillary Clinton say or do, to seem untrustworthy to Americans?

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Browse other questions tagged java string list equals contains or ask your own question. Identify unmarked leads on a 9 lead motor Lab colleague uses cracked software. Longitude is %f", latitude, longitude); } Hope this helps! Check If Item Exists In List C# Do you have any suggestion?

Christophe Verré wrote: So what do you have to do ? Why were pre-election polls and forecast models so wrong about Donald Trump? Should I have doubts if the organizers of a workshop ask me to sign a behavior agreement upfront? this contact form yes, chris...

Code ladder, Cops How to add a node ID as class to the tag in D8? But that's not where it needs to be overridden. I'd also recommend implementing IEquatable, which List will use in preference to Equals(object), as EqualityComparer.Default picks it up appropriately. o.k..

Change to: @Override public boolean equals(Object other){ if (!(other instanceof Animal)) return false; Animal otherAnimal = (Animal) other; return (this.legs==otherAnimal.legs) && (this.getClass().getName().equals(otherAnimal.getClass().getName())); } share|improve this answer edited Apr 1 '15 at What are some ways that fast, long-distance communications can exist without needing to have electronic radios? Then they try overriding equals() and find it is even more difficult than overriding hashCode Do a search of this forum and "beginning Java" and you should find some helpful pointers. Can the captain change players' positions without permission from a coach or manager?

For each loop showing decimal point when I don't want it to The pun worked in English, but what was it in Japanese?